Ethyl Lactate: A Green Solvent for Olefin Metathesis
作者:Sebastian Planer、Anupam Jana、Karol Grela
DOI:10.1002/cssc.201901735
日期:2019.10.21
with ethyl lactate as solvent was evaluated using a range of substrates and conditions. In addition, the preparation of a metathesis catalyst in simplified manner by using the advantages of ethyl lactate was accomplished. The application of ethyl lactate facilitates product isolation (also allowing for lower ruthenium contamination in crude metathesis products) and improves the overall green angle
A New One-Pot Synthetic Approach to the Highly Functionalized (<i>Z</i>)-2-(Buta-1,3-dienyl)phenols and 2-Methyl-2<i>H</i>-chromenes: Use of Amine, Ruthenium and Base-Catalysis
作者:Dhevalapally B. Ramachary、Vidadala V. Narayana、Kinthada Ramakumar
even with challenging polar products. The performance of these scavengers is compared and contrasted with other known techniques, such as silica gel filtration and the use of self‐scavenging catalysts. As a result, a new hybrid purification method is devised, which gives better results than using either a self‐scavenging catalyst or a scavenger alone. Additionally, isocyanide II is shown to be a deactivating
Metathetic approach to naphthoxepin and spirocyclic molecular frameworks
作者:Sambasivarao Kotha、Kalyaneswar Mandal
DOI:10.1016/j.tetlet.2003.12.075
日期:2004.2
An efficient method for the synthesis of naphthoxepin and spirocyclic skeletons starting from beta-naphthol has been developed. The Claisen rearrangement and the ring-closing metathesis reaction are used as key steps for their assembly. (C) 2004 Elsevier Ltd. All rights reserved.
Diversity-Oriented Approach to Biologically Relevant Molecular Frameworks Starting with β-Naphthol and Using the Claisen Rearrangement and Olefin Metathesis as Key Steps
作者:Sambasivarao Kotha、Kalyaneswar Mandal、Arti Tiwari、Shaikh M. Mobin
DOI:10.1002/chem.200600540
日期:2006.10.25
A diversity-orientedapproach for the synthesis of various structurally different molecular frameworks from readily accessible and common precursors is described. A Claisen rearrangement followed by ring-closingmetathesis or ethylene-promoted ring-closing enyne metathesis has been utilized as the key synthetic transformation to generate naphthoxepine derivatives. The ring-closingmetathesis approach